Telephone system



April 16, 1929- w. H. MATTHIES TELEPHONE SYSTEM Filed NOV. 29. 1926 4 Sheets-Sheet l $6 hummmam Q u w FF rllj I .EkGmk EQQE 553% Af/omey April 16, 1929. w, 5 1,708,949

TELEPHONE SYSTEM Filed Nov. 29, 1926 4 Sheets-Sheet 2 April 16, 1929.

W. H. MATTHIES TELEPHONE SYSTEM 4 Sheets-Sheet Filed Nov. 29. 1926 April 16, 1929. w, s 1,708,949

TELEPHONE SYSTEM Filed Nov. 29, 1926 4 Sheets-Sheet 4 Zf/amey switches employedin establishing. .connec-. l:

Patented Apr. 16, 1929.

mea re TE STATES LFIC WILLIAM HQ TEIES, or HACKENSACK, new ajs gadgfm STERN ELECTRIC COMPANY, INCORPORATED, 0F .nE wyoz'r-n 'n' y e ,c 'onr'onepr on or NEWYORK.

. YTMELEPHON'EV SYSTEM;

Application ma; November 29,1926." Serial 116. 151 291.

.This -invention.relates to':telephon -.sys- -appended -;-claims drawings iin tems'in which' 'connectionsare established by which means ofautomatic switching apparatus 1 .Fig.-* 1 -;show-s a.' diagrammatic a train nOf underth'e'control of an impulse transmitter iswitches-andzmeans for associating'a district and has for its ob ectthe provision ofan anii- SSlGCtOIJWliZh a sender embodying thepresent proved sender'for-recording:im-pulsesri-nom i-nventioni; .4. x such a-transmrtter. r r-Flgt2shotvs-the Pnmaryregister and-two Accordingto one 'aspeet of the-pr'es'ent-moi the secondary;reg1sters.- is l;

vent-ion the sender has a primaryregisterand F igs- -.3 and =4 .show additional secondary a plurality of secondaryregisters with means registers:

for simultaneously setting said primary 'regr x Assuining'that the-subserib'erlat substation ister and one otsaid secondary-registers, and .lOOwvishes'to talk-t0 the subscriberzat substaso arranged that the primary register-is r'etion 101,;he' will remove lfisreeeiv'er: from the stored at ea-chjsetting-thereof, while the .se'cswitchhook. torcause line finder-.3102 to lassoondary registers are'successively-operated ileia'te his line .with adist-rict selcctorwvhich- .:will. also;cause:the' associ'ation -of'amidlc In larger telephone systems the-automatic se'ndei-' with: the .district selector. 2 This may p I p .-e broughtaboutinlanyQ desired; manner; a tio'ns are. generally controlled-by means ofa -.al.inlr,-ci-reuit oi-the E typeediselos'e'd in- -U. :S.

central oflic'e sender.---An fi mpulsetransmit-3-Patent;No.=;1,56Z;072; grantedtoNWiI#I.:MaLt-' te'r or dial at the subscribefls s nbs'tationiis itliies;;on Decemben-29;-:l925,having beenin- 3 operated in-a-ccordance withsth'enumber of-:diated 1 diagrammatically, for; purposesnof a called'subs criber and a recondlof this num-a.--1i;lliistration. :As' Esoonaaszth'e linkf'eirfcuibhas her is established onthe control device; tThe-ifunctionedztoassociate: the .-sender-.wi th;}the

record is usually made onaplurality. of;reg-==rlistrict-lselector .aJ-ci'rcuit iis; closed from-- istcrs one for each digit of'the called number-ground; throughathewindingfif.:relay3l107, which registers are "successively rendered ef': 'throughs tlie .LlI'll(:.'.-ClI'Cult tdibat-tery, innthe fective by means of a m r t h-0r by the. .district selctoni {fheloperationof relay 107 use of a primary register which is positioned closes the circuit forsequenee switeh'rnagn'et by the impulses and subsequentlyapositions f108which controls-the operatzionofthe sender the other registers. here the digits=c0m-vadvancing'the-sequencelswitch to position2. prising: the wanted number are 'low,,such';as qA do a qu wit h-1O8 a h s; i 1 or 2, the digits may follow one another so tion 25am ,otfnormal ground is suppliedxto quickly as to allow scant time for the trans-v conductor.l09i-operating relay 110 toreniore fer from one register to another, thus neces: batteryfrom'the terminal corresponding to sitating exceptionally quick'ogerating appa- .this sender-in-the bank ofthesendcr selector i'atus. The system of the present intent-ion; .o'fthe link circuit for the purpose of enderhowever provides for the simultaneous op-- ing the-sender nonselectable to other links. eration of the primary register and the S'ec-' A circuit is also-completed-with ground on ondary register with me ns 0 d e h Sec conductor 109 over thebackicont-ac-t of relay ondary register as soon as the registration is 22.6 to the winding of relay 227and battery. completed. These secondary registers athere- Relay 227 eperates and extends conductors upon operate switch controlling registers by 251, 252, 253,'254;'255 to the relays of register means of which the connection to :the:called {220 paring-for the reception of the first "bers line is. established. rigit. =Italso prepares thetone' circuit. Reference is made to Patent.N0-1,623,777, Attire-same time a circuit is completed rranted April 5, 1927, to W. V. Carpentenwhich may be traced from battery-.thlollgh and to an application of F. A. Stearn, Serial the right winding;of:relay 103; through the No. 152.59 tiled Dec. 4; 192, for systems in link circuit, 'lowerieontacts of --ca-m which a register arrangement of the sort-dis. through the line finder 102, dial 105 and the closed has been employed. substation Circuit, back'to line finder.. lO.2, A clearer understanding of the invention upper contacts of cam-.106 through the-linl: l h obtained from a consideration of the circuit, to ground through resistance; 12 i. axing description in connection with the Relay 103 operates in this circuit. and closes an obvious circuit for relay 111. Relay 111 in turn closes a circuit for relay 112 and relay 112 closes a circuit for relay 113. As soon as relay 113 operates a circuit is closed from ground through the secondary winding of tone'c'oil 114, left winding of relay 103, upper front contact of relay 227, inner front contact of relay 113 to ground. The tone in the primary winding of-coil11l4 is induced in the circuit just traced and from thence into the right" winding of relay 103 and the receiver of the called subscriber. This tone is an indication to the calling subscriber that a sender has been associated with his line and is ready to receive the called number.

Assuming that the called subscribers number is :DILlon 6780 the subscriber will operate his dial to send out-three :series of impulses of 3,4and each, corresponding to also releases. The release of relay 111 opens the circuit of-relay 112 but thatrelay, being slow to release, remains operated between pulses; With relay .111 released a clrcuit is closed from battery through the Winding of relay 115, 'outer'back cont-acto'f relay-111,

outer front contact of-relay 1'13 to ground, re-

lay 113 being held operated by its slow-release character, as well as the slow-release character of relay 112. Relay 115 is also slow to release so that it does not retract its armarelay 103 during dialing but does close its back contact between digits.

At the first release of relay 103 a circuit is closed from ground over the back contact of relay 103, outer front contact of relay 112 to conductor 116 and thence over the upper back contacts ofrelays 210, 208, 206, 204 and 202 to the winding of relay 201 and battery. Relay 201 operates and closes a'loclring circuit for itself through the winding of relay 202, front contact of relay 201, upper back contact of relay 204. conductor 250 to ground over the middle back contact of relay 111- and the outer front contact of relay 113, or over the front contact of relay 115 and the inner front contact'of relay 113. This alternative arrangement insures the closure of the locking circuit for the relays, the circuit over relay 111 being ready before relay '115 has time to operate, and the circuit over the front contact of relay 115 remaining closed throughout each digit. Relay 202 does not operate in the above traced locking circuit until the reoperation of relay 103, following the first pulse, opens the energizing circuit of relay 201 and removes the shunt around the winding of relay 202. As soon as rel-ay'202 operates a circuit is closed from ground over -and 204, front contact of relay 202 to the winding of relay 203 and battery. As in the case of relay-201, relay 203 closes a locking circuit through the winding of relay 204 extending dverthefront contact of relay 203 and the back contact of relay 208'togrounded conductor 250. Atthe close of the pulse relay 204 operates opening the locking circuit of relays 201 and' 202' thus in turn opening the ucircuitof relay 222. It also connects ground over its lower front contact to conductor 253 completinga circuit over. theinner lower fronti contact of relay'227, upper winding of relay .223. to battery. At the next impulse the release of relay 103 completes a circuit from ground over its back contactas before traced tdconductor 116,- back contacts of relays 210, 208 and 206, Vfront contact of relay 204, winding'of relay 205 to battery. Relay 205 closes the usual locking circuit'for itself through-the winding ofrelay 206 to grounded conductor "250 over.v the back contact of relay 208. At the end of the pulse, relay 206 operates, but since::the locking circuit of relays 203 and 204 extends over the back contact of rclayw208, these relays also remain operated and gr'oundremains connected to conductor 253 and is connected to conductor 252. ,In

"consequence, relays 222 and 223 are both operated at this time. ture during the short operated periods of Since there-are only three impulses in this series relay' 103 now remains operated for a suflicient length of time to permit relay 115 to release; The release of relay 115-completes a circuit from ground over the inner front contact of relay 113, back contact of re lay 115,- conductor 117, over a chain circuit including the back contacts of relays 437, 427, 417. 337, 327, 317 and 237, lower winding of relay 226, lower front contact and winding of relay 223 to battery and also over the lower front contacts of relay 223, lower front contact and winding of relay 222 to battery. Relay 226 operates and closes a s 7 locking circuit for itself from battery through its upper winding and lower front contact to grounded conductor 109. The operation of relay 226 also closes a direct locking ground for relays 222 and 223 independent of the chain circuit through the other registers. A circuit is also closed from battery through-the winding of relay 237, back contact of relay'236, lower front contact of relay 226 to grounded conductor 109, operating relay 2?? to extend conductors 251 to 255 torelease after register 230.

It will be noted that the holding circuit Ior relay 222 extends through the front contact of relay 223 and also over the front contact of held operated relays 222 and 50 circuit for relay 209, which i relay 225. "This is due to the fact that the digit 1 is "never employed as the fi -t digit of an o'fii'ce code since'it may he siinnlated accident. Therefore the relay 222 is not except in combination with other relays. 4 Duringthe interval between digits relay lll fremains ope-rated. Therefore the release Cf relay 115 disconnectsground from'fcohduct-or 250 releasing the opcrated'cornting relays of primary register 200. It {will he 'neted't-hat the contacts of relay '115 areso arranged that ground not disconnetted from conductor 250'until after the circuit of relay 2'26 isconipIe-ted's that the relaysof register 200 are'not rel iseduntil *afterthe relays of register 220 locked upi f 4 When 3 the subscriber operates his dial to send tlre s'econd digit 1, he will open the cir- 2U c'uit 'of relay 103 toxin-dines.Relays "201 to will beiopera'ted in tl'ie'man'nee described for the first digit in rcspensefto the first 'thrce pulses. Relays 232' and six i s-i1! be operated alone and in 'con'ib'ination'as described for In response to-thevfourth impulse relay 207 is operated'and closes a locking circuit for itselfthrough the'winding of relay 208 over the badcontact of' rclay 210 to conductor-"250.. lVhen'r'elay-208 31) operates .atthecompletion'of'the pulse, re-

lays 203, 204, 205 and 306 are all releasedne- 1no\-'ing'groundfrom conductors 252 and 253. Relay 208 connects groundto' conductor -11 to operate relay 234; -The releaseof relay 115 atthe end of thedigit cai ses the operation of relay 236111 a circuit similar to that' for relay 226 except that the back contact of relay 237 is not included. Relay .236 in operating closes ground from co'nductor 109' -10 over its lower front contacts, and lower front.

relay 317 attcrsrhich the relays of register 200 are 1lG.1S0(l,':I21(l'tllc 'Cl rcuit prepared for receiving the third digit." i

The first four impulses of thethird digit, 5, are're ceive d as previouslydescribed. lhe fifth interruption of the circuit completes a g turn closes a locking circuit for itself through the "\iind in: of relaY'QlO. over the hack contact of relay 20: to cor-.(luctor Relay 210 opens the locking circuit of relays 207 208 and connects ground over its lower front contact,

lower front contactof relay 2 to conductor 25", middle upperfront contact'of relay 317 to the upper winding of relay 315 and battery. Relay 210 in operating also closes a circuit from battery to tlie'winding of relay 211, back'cont-act of relay 212, upper front contact of rela" 210 to grounded conductor 250. Relay 211 closes a lockingcircuit for itself throughthdrfindirig of relay 212 which is ineriective as 'longas relay 210 reconnects ground to conductor 120-150 initiate the operation of the decoder conneetor'which serves to connect, an idle decoder'wvith the eode -registers.-220, -230 and 310 --to translate or decoddthat registration and to transfer the decoded registration-to the selec'tionregiste'rs'yyhich' cont'roltlie operation'of the districtselector' 1'50' and an otlices'electoT-if "necessary; by means of the usual fundamental circuitand revertive impulses to select a trunk dut-going to "the wanted ofiice."

' When the subscriber dials the'fou'rt-h digit 6 the're'laysof register 200 are operated-in the same manner as was described for the first five impulses. The 6th impulse-will cause the completion of a circuit from ground *to conduc'tor 116 over the front contact-ofrela-y 1210 and the back contactof relays 208, 206, 201 and 202 fto thefwindin'g 'of relay 201 which operates in the samen'ianner as before "the locking "circuit; of relays 209*a nd 210'is' maintained atthis time so that upon the operation of relay 202 atjthe closei of the last impulse ground is" connected to conductors 252 and 255 causing the operation of relays 32 5 and in" register-320. As before therelease of relay 115 causes the operation of relay 326, the 'release'of register 200 and the operation of relay 337 1:0 render register 330 effective to receive the next digit. Y

l-Vhen a subscriber dials the next digit, 7, the register 200 operatesin the manner described for the first 6 impulses. The 7th impulse causes the completion of thecircuitof relay 203' over the front contactof relay 210, back contacts of relays 208, 206, 201 and front contact of relay 202. The locking circuit of relay, 203 is the sameason its first operation. -At the end of the' pulse, relay 204 operates opening the locking circuit of relays 201, 202, 209 and 210. It also connects ground to conductor 253. The release of relay 210 permits relay 212 to operate in the locking ircuit of relay 211 and the operation of relay 212 connects ground over the back contact of relay 210 and the inner front contact of relay 212 to conductor 255 so that relays 333 c and 335 are operated at the end of the last impulse. As before, the release of relay 115 causes the operation of relay 336, the release of register 200 and'the operation of relay 417. J

In response to the dialing of the next digit. 8, the register 200 is operated as described for the first seven impulses and the circuit for operating relay 205 in response to the 8th digit is the same as first'traced. The locking circuit is also the sameas previously described. The locking circuit of relays 211 and 212 is independent of any of the other relays and therefore these relays remain operate'd until the register is released. It will following the lastimpulse causes theoperation of relay 416 holdingrelays412, 413 and 415 operated, releasingregisterx200 and operating relay 427.. 5 In response to the last digit. 0 the register 200 record's-the first 8 impulsesin the manner described. The Qthdigitds recorded .on

relays 207 and 208 and {the .tenthdi'git' causes the operation of relays 209 and 210. 'lY-ith r relays209, 210, 211 and 212 operated, a circuit -is closed from ground over the front .contact of relay 2lO,lower frontcontact of relay 212 to conductor 251' and thence over thelowermost front contact of' relay 427 to the wind- 1 ing of relay 421, the operation of relay 210 disconnecting ground from conductor 255 and releasing relay 425, whichhasbeen oper- ..ated since the reception. of the. fifth impulse.

The releaseiofrelay 115 causes :the operation of relay 426, release of register.;20 0 andthe operation of relay, 437. Since no, stations designation is included, register 430willnot be positioned. I .5

The selection of an outgoing trunktothe wanted office is controlled by Sequence switch In combination,

108. Following the completion of these selec-- tions the selection register is released and the sequence switch is advanced to a posi- 'tion inwhich the thousand register 320 is effective to control the setting of one of the selection registers. For aspdctailed description of theseoperations reference isinade to the application of F. A..Stearn referred to above.

What is claimed is: I 1. In a registering system, a'primary register, a plurality of secondary-registers and means to simultaneously position said I primary register and set one of said secondary registers in. its permanent tion. I I

. 2. In a registering system, a primary regisregistering positer, a plurality of secoiid-ary registers, means.

to transmit series of impulses to said registers, means to simultaneously and successively posit on said-priiiiary register and one of said secondary registers.in accordance with the numerical position. of each impulse of a series, and means to hold said secondary register in a position corresponding to the last impulse received. i I

a primary register, a plurality of secondaryregisters, means to simultaneously position said primary I regis ter and one of'said secondar -.registers, and means to simultaneously hol tlie positioned secondary register in said position and to associate theprimary register with the next secondary register. i I 4. In a registering system, means progressively positioiiedin responseto a series of impulses, a plurality ofregisters,'means to position one of said registers 'simultaneouslywith the positioningof said responsive means, and means operable. upon the, completion of a series-of impulses to simultaneously hold the positioned register and to associate :saidresponsive-rneans with the next register. 5. .In; combinationfa;primary register, .a

. plurality of secpndaryregisters each comprising a plurality-of relays arranged to be operated in {combinations constituting. ,a code, ineans. tosinn ltaneously and successively position said primary register andone-ofsaid secondary. registers in accordance with the numericalposition ofeach impulse of a'series of impulses and -means to hold said secondary register in theposition;corresponding,to the mafi 1 5 with the Po t o i g. I' e responsive neans in accordance with the .numerieelipqsi ioe i e h eq e ivi p s i a s ri s 2 m ns p' reblei pb t -rep tioii ofsaidseriesiof impulses to simultaneous- .ly.,hold; the ,register' ing the position. .;corre- .sponding-t'o the last impulse received and to associate saidgresponsive means with the next register 7. In Y registering system, means progressively positionedin response. to a'jseries of impulses, a plurality; of.registers each com prisinga plurality of relays arranged to be operated incombinations according .to a code, .means to successively position Ione of said registers simultaneously, with ,thepositioning of saidre sponsive means inaccordance with i the digit represented by each successive impulse; and means operable upon-thecompletionof said seriesof impulses to simultaneouslyhold the register in the position corresponding to the last impulse received and to associate said responsive means with the next register; a

8. Int registering system, a primary regis .ter, a" plurality of secondary registers, and means to positionthe secondaryregisters by simultaneously operating the primary register -withjeach of said secondary registersin succession.

9., Ina registering system, aprimaryreg ister, plurality of secondary registers, means to position the secondary registers by simultaneously operating the primary register with each of said secondary registers nsuccessi'on, and means to release the' primary gister and-lockt ec nda t is e up n the bom'pletionofeachfop eration.

10. In a1 registering systems pr may reg: ster,, r1 i 1it .1; i n' ly e i ers e t 'P t QnTflIQ,s w d ri r s es' 'ism taneously operating the pnm'ary'regi'ster each-,oflsaidsecondaryregisters succession, and" nieansop'rable upon "the completion of each simultaneous operation to prepare the primary register for a subsequent operation and lock the secondary registers positioned by said operation.

11. In a registering System, a progressively operable primary register, a plurality of secondary registers, each progressively responsive with each operation of said primary register when associated therewith, and means for successively associating said primary register with each secondary register.

12. In a registering system, a progressively operable primary register, a plurality of secondary registers, each progressively responsive with each operation of said primary register when associated therewith, means for successively associating said primary register with each secondary register, and means for lockin each secondary register in the position ta 'en byits last operation.

13. In a registering system, series of impulses to be registered, a primary register, a plurality of secondary registers for recording the settings of said primary register, means to successively associate said primary register with said secondary registers, and means in said primary register and the associated secondary registers to simultaneously register each impulse of a series.

14. In a registering system, series of impulses to be registered, a primary register, a plurality of secondary registers for recording the settings of said primary register, means to successively associate said primary register with said secondary registers, means in said primary register and the associated seconds registers to simultaneously register each impulse of a series, and means to lock said secondary registers to record any of said ICglfil'fli'iCllF.

15. In a registering system, series of 1mpulses to be registered, a primary register, a plurality of secondary registers for recording the settings of said primary register, means to successively associate said primary register with said secondary registers, means in said primary register and the associated secondary registers to simultaneously regis ter each impulse of a series, and means to lock said secondary registers to record any of said registrations and prepare said primary register for registering a subsequent series of impulses.

16. In a registering system, a primary register comprising a plurality of relays operable in continuous progression, a plurality of secondary registers each comprising a plusively a series of relays in said primary and secondary registers for controlling a setting of'a combination of said secondary register relays, and means to associate said primary register with each secondary register for controlling the settings of said secondary registers according to successive operations of said primary register. 18. In a registering system, a primary register comprising a plurality of relays operable in continuous progression, a plurality of secondary registers each comprising a plurality of relays operable in combinations, means for associating said primary register with a secondary register, lneans to progressively operate a plurality of relays in said primary register, means for causing said secondary register to take different settings simultaneously with the o eration of succes- -sive primary register re ays, and means to lock said secondary register in the setting last taken.

19. In a registering system, a series of impulses to be registered, a primary register comprising a plurality of relays less in number than the maximum number of impulses to be registered, a plurality of secondary registers for recording the settings of said primary register, means to successively associate said primary register with said secondary registers, and means in said primary register and associated secondary registers to simultaneously register each impulse of a series.

20. In a registering system, a series of impulses to be registered, a temporary register comprising a plurality of relays less in number than the maximum number of impulses to be registered, a plurality of permanent registers for recording the settings of said temporary register, means to successively associate said temporary register with said permanent registers, means in said temporary register and associated permanent registers to simultaneously register each impulse of a series, and means to lock said permanent reg-- ister to record any of said registrations.

21. In a registering system, a series of impulses to be registered, a temporary register comprising a plurality of relays less in number than the maximum number of impulses to be registered, a plurality of permanent registers for recording the settings of said temporary register, means to successively associate said temporary register with said permanent registers, means m said temporary register and associated permanent registers to simultaneously register each impuse of a series, and means operable upon the completion of a series of impulses to prepare said temporary register for registering a subsequent series of impulses and lock the associated permanent register in position.

In witness whereofi-I hereunto subscribe my name this 26th day of November, A. D.

WILLIAM H. MATTHIES. 

